IDs (Gymnocalycium / Cereus / Ferocactus)

[diezcielos]

Hi,

Could you help me identifying these three cacti? Many thanks!

1.

241217758_244168620942422_8698882369095478718_n.jpg (66.84 KiB) Viewed 1092 times

>> In its original pot

241178578_870905193531537_5373817562342095489_n.jpg (54.18 KiB) Viewed 1092 times

>> Its flower

241246374_2626716084303379_3744792047522746844_n.jpg (89.74 KiB) Viewed 1092 times

>> In its current pot - it is greener now

2.

241551517_378977567005603_3701328937255900142_n.jpg (133.63 KiB) Viewed 1092 times

3.

241466585_173580744853584_1409672525638582631_n.jpg (112.63 KiB) Viewed 1092 times

[anttisepp]

Gymnocalycium friedrichii
Ferocactus aff. peninsulae/townsendianus/herrerae/horridus
Trichocereus sp. (spachianus?)

[ohugal]

First one I wanted to say G. Mihanovichii, but the names are interchangeable.

[greenknight]

First one I wanted to say G. Mihanovichii, but the names are interchangeable.

Yep - another name is Gymnocalycium stenopleurum. It's one of the cacti the experts can't seem to agree on.

[anttisepp]

As mihanovichii as stenopleurum have greenish flowers.

[DaveW]

Gymnocalycium mihanovichii (type form) has greenish yellow flowers. Therefore it depends how much of a lumper you are whether you include the others like G. mihanovichii v. friedrichii with pink flowers or even G. stenopleurum? The deeper pink flowered G. friedrichii in cultivation seems to be a selected clone with the more attractive deeper flower colour?

https://llifle.com/Encyclopedia/CACTI/F ... hanovichii

http://llifle.com/Encyclopedia/SUCCULEN ... riedrichii

However as Spence says and also Graham Charles Gymno book lumps G. friedrichii under G. stenoplurum, not G. mihanovichii. The collected plants of G. stenopleurum in his book have white flowers with slightly pinkish outer petals, but if you lump G. friedrichii in it also has pink flowers. It is often hard with some of the older descriptions to decide what the original author meant by the plants and the old illustrations were monochrome anyway.

I think I have this one as G. stenoplurum?

Gymno.jpg (87.55 KiB) Viewed 1054 times

[diezcielos]

Gymnocalycium friedrichii
Ferocactus aff. peninsulae/townsendianus/herrerae/horridus
Trichocereus sp. (spachianus?)

Thank you!